Checklist for release 1.4

[AntonPetrov]

• [x] Make sure all tests pass
• [x] Upload precomputed library to the EBI FTP
• [x] Update version info in Readme and shared.py
• [x] Merge pull request
• [x] Check that Docker Hub updated the latest image
• [x] Publish GitHub release
• [x] Publish blog post
• [x] Update Timeline Google Doc
• [ ] Deploy new web app on rnacentral.org
• [ ] Deploy the latest image on Job Dispatcher and test the API
• [ ] Tweet
• [ ] Create a checklist for the next release